EP3617575B1 - Wall feed-through for elongated components - Google Patents

Wall feed-through for elongated components Download PDF

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Publication number
EP3617575B1
EP3617575B1 EP18306157.1A EP18306157A EP3617575B1 EP 3617575 B1 EP3617575 B1 EP 3617575B1 EP 18306157 A EP18306157 A EP 18306157A EP 3617575 B1 EP3617575 B1 EP 3617575B1
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EP
European Patent Office
Prior art keywords
wall
hard component
sealing
feed
parts
Prior art date
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Active
Application number
EP18306157.1A
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German (de)
French (fr)
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EP3617575A1 (en
Inventor
Andreas ZRENNER
Erhard WALTER
Markus Wall
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Nexans SA
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Nexans SA
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Priority to EP18306157.1A priority Critical patent/EP3617575B1/en
Publication of EP3617575A1 publication Critical patent/EP3617575A1/en
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Publication of EP3617575B1 publication Critical patent/EP3617575B1/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/22—Installations of cables or lines through walls, floors or ceilings, e.g. into buildings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/0207—Wire harnesses
    • B60R16/0215—Protecting, fastening and routing means therefor
    • B60R16/0222—Grommets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
    • F16L5/02—Sealing

Definitions

  • the invention relates to a wall duct.
  • the openings in the housing walls can be sealed by means of sealing plugs made of rubber, polymers or other elastic materials.
  • sealing plugs made of rubber, polymers or other elastic materials.
  • correspondingly large sealing plugs are required, which must be made correspondingly massive in order to achieve sufficient mechanical stability, especially if a cable, rope or rods passed through the wall duct is displaced along a longitudinal direction during normal use.
  • U.S. 5,545,854 A discloses a multi-part cable bushing in which each of two flexible sealing parts is received between two hard components.
  • the halves of the cable bushing thus created from three parts joined together are then positioned on both sides of a line so that it can be received by the cable bushing, and joined together by means of snap-in connections.
  • the line is clamped in a sealing manner by the flexible sealing parts, which extend axially over the entire length of the cable bushing.
  • the US 9 944 239 B1 shows a four-part sealing arrangement in which one of two halves of a sealing component is received in each of two halves of a hard component.
  • the cable is clamped in a sealing manner by the flexible sealing parts, which extend axially over the entire length of the cable bushing.
  • the US 2014/054064 A1 shows a cable bushing with a hard component that can be folded over a cable, over which a collapsible, bell-like outer sealing component can be attached, which at the same time represents the only sealing component of the cable bushing.
  • Lines or ropes routed through a one-piece or multi-part wall duct made of elastic materials cannot be laid in a narrow radius immediately before and / or after the wall duct, because otherwise the geometry of the wall duct and thus the sealing connection to the wall would be impaired. If a line or a rope is movably guided in the longitudinal direction in such a wall duct Laying in a narrow radius or a tensile load that does not follow the rope axis means that the force to move the cable or the rope fluctuates greatly.
  • the invention proposes a wall duct with a multi-part, preferably two-part hard component and a sealing part, in which each part of the hard component has a continuous recess in a direction pointing out of a plane parallel to the wall.
  • the recesses can run perpendicular to the plane lying parallel to the wall, but also at any angles.
  • the recesses in the parts of the hard component form a feed-through opening. Designs with several recesses, which form several corresponding passages when assembled, are also possible.
  • Each part of the hard component has a first receptacle for a soft component at least at the recess.
  • the one in the first In the assembled state of the parts of the hard component, the soft components that have been received lie against one another in a sealing manner and radially enclose the feed-through opening.
  • an elastic soft component that surrounds the feed-through opening in a ring shape can be accommodated in the first receptacles of the parts of the hard components, for example an elastic sealing ring that surrounds a cable, rope or rods passed through the feed-through opening.
  • the dimensions of the soft component and recess or feed-through opening on the one hand and the rope, cable or linkage on the other hand are matched to one another in such a way that the feed-through opening is tightly sealed in the final assembly state.
  • the soft components can be inserted into the first receptacles or molded onto the first receptacles.
  • the first receptacle can be designed in such a way that the soft component is positively connected to the hard component.
  • an additional material connection between the hard and soft components can be provided, for example by gluing or local melting in the contact area of the soft component and the first receptacle.
  • Each part of the hard component also has one or more latching devices which, after the wall lead-through has been introduced into a through hole in the wall, latch with the wall.
  • This can be the wall of an electrical device or an electrical system, etc., or it can also be a partition wall of a motor vehicle.
  • the specific design of the wall, in particular the nature of the wall or the materials used for this, is irrelevant for the feasibility of the invention.
  • the latching devices can comprise latching or snap hooks which fix the wall leadthrough without tools by latching on the circumference or edge of the through hole in the wall.
  • Each part of the hard component also has at least one second receptacle for the sealing part on an outside.
  • the second recordings are spaced from the wall in the installed state, that is, they do not lie directly on the wall.
  • the sealing part has a Sealing area which seals the parts of the hard component that are joined together and latched to the wall at least between the second receptacles and to the wall.
  • the sealing part can exert an elastic force on the hard component in a direction acting essentially perpendicularly to the wall, which force holds the latching devices guided through the through hole on the wall.
  • the sealing part can be made in one piece and radially enclose the parts of the hard component that are connected to one another.
  • the parts of the hard component have sealing means on or on a surface which, in the assembled state, bears at least regionally on a corresponding surface of an adjacent part of the hard component.
  • These sealants can be part of the soft component or at least bear against it in a sealing manner.
  • sealing means that fluids are prevented or at least hindered from spreading through or beyond the sealing elements.
  • the sealing means extend, sealingly adjoining the soft component of the recess, in the radial direction from the internal through opening without interruption to an outer surface of the hard component.
  • the sealing means form a barrier for fluids that get between the abutting surfaces of the parts of the hard component.
  • fluid could otherwise be transported through the wall duct due to the capillary effect.
  • water can be used as the fluid, in particular rainwater and / or splash water.
  • the duct opening has a smaller diameter in the area of the soft components than in the area of the hard components.
  • the reduction in diameter can be caused by the soft component.
  • the recesses in the parts of the hard component themselves can have a different cross section.
  • the soft component can in the area of the recess or the later lead-through opening under mechanical tension on one through the Lead-through opening of the rope, cable, rods or the like are in sealing contact.
  • one or more lamellae or ribs can be provided at this point, which rest against the component. These ribs or lamellas can deform in the direction of a movement of the component and still bear against them, so that the seal of the bushing is guaranteed even if the component guided through the wall bushing is displaced.
  • the parts of the hard component have one or more connecting elements by means of which the parts of the hard component can be connected.
  • the connection can be detachable or non-detachable.
  • the connecting elements can, for example, comprise latching lugs which engage in corresponding eyelets or undercuts of the respective other part of the hard component.
  • Spreading elements are also conceivable which engage in corresponding holes or bores in the respective other part of the hard component, spread open there and prevent the parts from becoming detached from one another.
  • cylindrical pins engaging closely in corresponding holes or bores in the respective other part of the hard component can also be provided. In this case, the friction between the pin and the bore prevents the parts from loosening, which can additionally be impeded or prevented by the sealing part and / or the feed-through opening in the wall.
  • the parts can be glued or welded.
  • the sealing part surrounds the parts of the hard component in an annular manner, at least between the second receptacles and the wall.
  • the sealing part can be designed to be radially elastic, so that its inner ring side rests against an outer side of the hard component under mechanical tension.
  • the sealing part is elastically or plastically deformable in a direction which points out of a plane parallel to the wall, so that it is built-in State of the wall lead-through between the second receptacles and the wall is compressed or deformed so that the sealing part rests against the wall in a circumferentially sealing manner.
  • this means that the sealing part is elastically or plastically deformable in the axial direction.
  • the sealing part can be connected to the second receptacles in a material and / or form-fitting manner, so that the hard components and the sealing part can be fixed to one another.
  • a positive connection can be brought about, for example, by means of an internal annular groove in the sealing part, into which the receptacles engage.
  • the sealing part can also have corresponding inwardly projecting regions or recesses that correspond to the receptacles.
  • the sealing part has a radially circumferential, elastic sealing lip protruding towards the wall on a side lying against the wall, which is under mechanical tension after the wall duct has been locked in the through opening of the wall and seals the wall all the way round is present.
  • the sealing part encloses the assembled hard component in a bell-shaped manner.
  • the through opening remains open on both sides in the axial direction.
  • the lower part of the bell-shaped sealing part can be designed in such a way that the lower opening rests against the wall in a sealing manner under mechanical tension.
  • the bell-shaped sealing part can be connected to the second receptacles in such a way that axial displacement of the sealing part and the hard component is not possible.
  • the upper opening can rest elastically on the rope, cable or linkage and thus form a further seal.
  • the sealing member has a shape that resembles the surface of a body of revolution. Examples of this are the outer surface of a truncated cone, the surface of a section of an ellipsoid of revolution between two degrees of latitude, a section of a paraboloid of revolution or a hyperboloid of revolution.
  • the parts of the hard component are identical parts.
  • the identical parts have to be rotated 180 degrees in relation to one another in order to be able to be connected to one another.
  • the identical parts are segments that can be connected to one another without rotating.
  • the soft component, the sealing means and / or the sealing part are preferably made of flexibly deformable materials, e.g. silicone, rubber, polymers, rubber, and the like.
  • the materials of the soft component, sealant, sealing part and / or hard component can, depending on the requirements, be electrically non-conductive or, if shielding against electromagnetic radiation is required or the generation of electrical charge by friction is to be avoided, made of electrically conductive material.
  • plastics can be mixed with electrically conductive particles in a suitable concentration.
  • Figure 1 shows a schematic representation of components of an exemplary wall duct 100 according to the invention with a two-part hard component 102 and a sealing part 104.
  • the two parts 102-1 and 102-2 of the hard component 102 are identical parts in this embodiment, ie there are two identical parts that are rotated against each other the hard component 102 can be assembled.
  • Each part of the hard component 102 has connecting elements 124; in the embodiment shown by way of example in the figure, the connecting elements 124 are latching hooks which engage in corresponding recesses or openings and latch there.
  • a recess 108 is provided in each of the parts 102-1 and 102-2 which extends over the entire length of the hard component.
  • the recesses 108 form a feed-through opening through which a cable, rope or linkage can be passed.
  • a soft component 114 is arranged transversely to the recess 108 and extends over almost the entire width of the parts of the hard component.
  • the soft component 114 follows the contour of the recess 108, so that in the assembled state of the hard component 102 a seal is provided in the feed-through opening and at the same time a seal is provided between the two parts 102-1 and 102-2 of the hard component 102.
  • the soft component 114 can be arranged in a first receptacle, which cannot be seen in the figure, for example a groove or groove.
  • a second receptacle 120 is provided on each part 102-1 and 102-2 of the hard component 102.
  • the second receptacle 120 is a radially encircling ring which engages in a corresponding groove in the sealing part 104 and connects the hard component 102 to the sealing part 104 in a form-fitting manner.
  • the sealing part has a sealing area 122 which, in the assembled state of the wall duct 100, rests in a sealing manner on the wall (not shown in the figure).
  • the parts 102-1 and 102-2 of the hard component 102 also each have a latching device 116 by means of which the wall duct 100 is latched in a through hole in the wall.
  • FIG. 11 shows two views of the assembled components of the wall bushing 100 from FIG Figure 1 from substantially opposite directions.
  • a perspective view of the sealing part 104 seen from an outside, is shown, in which the hard component 102 is received.
  • the outside refers to the side on which undesirable or undefined environmental conditions can prevail, which should be kept away from the inside.
  • only a small part of the hard component 102 can be seen.
  • the opening of the feed-through opening 110 can be seen.
  • FIG. 1 On the right-hand side of the figure, a perspective view of the sealing part 104, seen from the inside, is shown, in which the hard component 102 is received.
  • the latching device 116 of the hard component 102 can be clearly seen, by means of which the wall duct 100 can be fastened in the through hole in the wall, which is not shown in the figure.
  • the two parts of the hard component 102, or the dividing line at which the two parts bear against one another, and the lead-through opening 110 can also be clearly seen.
  • FIG. 13 shows a perspective detailed view of part of the hard component 102 of the wall bushing 100 from FIG Figure 1 with the soft component 114 picked up.
  • the view shows the surface which rests against the other part of the hard component 102 in the assembled state of the wall duct 100.
  • the latching hooks of the connecting elements 124 can be seen on the left side of the part of the hard component 102.
  • On the right-hand side the corresponding points at which the latching hooks of the other part of the hard component 102 engage in the assembled state.
  • the recess 108 runs centrally through the hard component 102 and forms one half of the later lead-through opening.
  • the soft component 114 extends at the level of the second receptacle 120 transversely to the recess 108 and forms a sealing plane transversely through the wall duct.
  • the soft component 114 narrows the feed-through opening in the area of the recess 108, so that a rope, cable or linkage accommodated in the assembled parts of the wall feed-through can be guided freely in the feed-through opening, but the desired sealing effect is still achieved (not shown in the figure).
  • the soft component 114 rests elastically on the rope, cable or linkage in the area of the feed-through opening under mechanical tension.
  • FIG. 8 shows a sectional view of the wall bushing 100 mounted in the through hole 118 of a wall 106 Figure 1 .
  • Wall 106 can be, for example, a bulkhead or a partition plate in a motor vehicle, which separates a wet area NB from a dry area TB.
  • the hard component 102 is in the through hole with the latching devices 116 118 of the wall 106 latches.
  • the bell-shaped sealing part 104 engages over the hard component 102 and is received in a form-fitting manner in the second receptacle 120, so that the sealing part 104 and hard component 102 are secured against displacement in the direction of the feed-through opening 110. Sealing part 104 is clamped between wall 106 and second receptacle 120.
  • This area of the sealing part can be compressed and / or deformed so that the sealing part 104 rests radially circumferentially on the wall 106 with a sealing area 122.
  • this is shown in that the outer edge of the sealing part appears to penetrate into the wall; in reality, the outer edge would rest against the wall under mechanical tension.
  • the dividing line between the two parts of the hard component runs perpendicularly pointing out of the plane of the drawing, so the areas of the soft component 114 that extend to the edges of the second receptacle 120 are not shown.
  • Figure 5 shows a sectional view of a variant of the wall duct 100 according to the invention mounted in the through hole 118 of a wall 106.
  • the sealing part 104 in contrast to the one in FIG Figure 4
  • the sealing part 104 the hard component 102 is not bell-shaped, but is designed as a ring.
  • the annular seal member 104 is exactly as in FIG Figure 4 clamped between wall 106 and second receptacle 120, so that it is under mechanical tension.
  • the tightness between the two parts of the hard component 102 and the sealing part 104 is achieved by a corresponding design of the soft component 114, which is brought up to the sealing part 104.
  • This is exemplified in the figure by the line which extends laterally from the soft component 114 in the direction of the sealing part 104.
  • the other elements correspond to those from Figure 4 and are referenced with the same reference symbols. They are therefore not explained again.
  • FIG. 6 shows a first view of an application of the wall bushing 100 according to the invention in an electric vehicle.
  • a charging socket 128 is provided, by means of which an electrical connection between a power source and the drive battery is established of the vehicle (not shown in the figure).
  • the charging socket 128 is usually arranged on the vehicle, accessible from the outside, and is thus located outside an interior of the vehicle that is shielded from external environmental influences.
  • a plug of a power source (not shown in the figure) connected to the charging socket 128 must also be able to be separated from the charging socket 128 from the interior.
  • a cable pull 126 is provided which is connected to an actuating device (not shown in the figure) in the interior of the vehicle and which is connected to a mechanical separating device on the charging socket.
  • the plug and charging socket 128 are separated from one another.
  • the cable 126 must be passed through the wall 106, which separates the interior (dry area) from the exterior of the vehicle (wet area). In the figure, the wet area is on the side of the wall 106 on which the charging socket 128 is located.
  • the cable 126 is passed through a wall duct 100 according to the invention.
  • the two-part wall bushing according to the invention makes this possible in that the bushing opening in the wall bushing only has to have approximately the diameter of the cable because larger stop parts of the cable do not have to be passed through the bushing opening.
  • Figure 7 shows a second view of an application of the wall bushing 100 according to the invention in an electric vehicle.
  • the figure shows a view from the interior of the vehicle.
  • Cable pull 126 is guided from the interior (dry area) through the wall duct 100 mounted in the wall 106, and from there connected to the separating device 130 of the charging socket 128, not shown in the figure.
  • the leadership of the cable 126 is in the Figures 6 and 7 purely exemplary and can vary depending on the vehicle.
  • Figure 8 shows an exemplary representation of the method steps for assembly 200 of a wall bushing 100 according to the invention.
  • a first step 202 the cable, rope or linkage is in the cutouts 108 of the parts of the hard component 102 of the wall bushing 100 are placed.
  • the next step 204 the parts of the hard component 102 are assembled and connected to one another. The connection can be made, for example, by latching the connecting elements 124.
  • the sealing part is connected to the second receptacle 120 or brought to it.
  • the wall bushing 100 is now introduced into the through hole 118 in the wall 106 in step 208.
  • the cable, rope or rods 126 can be guided from the wet area through the through hole 118 into the dry area, while the wall bushing 100 is also inserted into the through hole 118.
  • the wall duct 100 is latched in the through hole of the wall 106, the sealing part 104 being deformed between the hard component 102 and the wall 106 and a circumferential seal being ensured.
  • the cable, rope or linkage 126 can now be pushed or pulled into a final position and attached or fastened there.

Description

Gebietarea

Die Erfindung betrifft eine Wanddurchführung.The invention relates to a wall duct.

Hintergrundbackground

Bei der Installation von elektrischen Anlagen ist es oft erforderlich, bereits mit Steckverbindern oder ähnlichen Kontaktelementen versehene elektrische Leitungen durch Öffnungen in Gehäusewänden durchzuführen. Damit die Steckverbinder für das Durchführen nicht entfernt werden müssen, weisen diese Öffnungen dabei oft einen Durchmesser auf, der größer ist als der Leitungsdurchmesser. Hierbei stellt sich das Problem, die Gehäuseöffnung nach dem Durchführen der Leitung dicht zu verschließen. Ähnliches gilt, wenn anstelle von elektrischen Leitungen Seilzüge oder Gestänge mit daran befestigten Anschlagteilen durch Gehäusewände hindurchgeführt werden sollen.When installing electrical systems, it is often necessary to lead electrical lines already provided with plug connectors or similar contact elements through openings in the housing walls. So that the plug connectors do not have to be removed for feeding through, these openings often have a diameter that is larger than the cable diameter. The problem arises here of sealing the housing opening after the line has passed through. The same applies if, instead of electrical lines, cables or rods with attached stop parts are to be passed through the housing walls.

Die Öffnungen in Gehäusewänden können mittels Dichtpfropfen aus Kautschuk, Polymeren oder anderen elastischen Materialien abgedichtet werden. Bei größeren Öffnungen sind dafür entsprechend große Dichtpfropfen erforderlich, welche zur Erlangung einer ausreichenden mechanischen Stabilität entsprechend massiv ausgeführt werden müssen, insbesondere wenn ein durch die Wanddurchführung hindurch geführtes Kabel, Seil oder Gestänge bei normaler Benutzung entlang einer Längsrichtung verschoben wird.The openings in the housing walls can be sealed by means of sealing plugs made of rubber, polymers or other elastic materials. In the case of larger openings, correspondingly large sealing plugs are required, which must be made correspondingly massive in order to achieve sufficient mechanical stability, especially if a cable, rope or rods passed through the wall duct is displaced along a longitudinal direction during normal use.

Im Falle einer einteiligen Wanddurchführung können Leitungen, Seile oder Gestänge mit verdickten Enden, bspw. Anschlagteilen oder angespritzten Elementen, nur schlecht durch die Durchgangsöffnung geführt werden. Aus diesem Grund können zwei- oder mehrteilige Ausführungen zum Einsatz kommen. Bei den zwei- oder mehrteiligen Wanddurchführungen kann die Abdichtung zwischen den Teilen eine Herausforderung darstellen, aber auch die Maß- und Formhaltigkeit der zusammengesetzten Teile. Letzteres kann insbesondere dann problematisch sein, wenn die zusammengesetzten Teile nur durch Einklemmen in der Öffnung der Wand zusammengehalten werden. Eine Verbindung mittels Verkleben kann hier Abhilfe schaffen, erfordert jedoch einen zusätzlichen Arbeitsschritt und ggf. Trocknungszeit. Außerdem können verklebte Teile nur sehr schlecht wieder getrennt werden, sollte dies etwa für Wartungszwecke oder beim Austausch der Teile erforderlich werden.In the case of a one-piece wall feed-through, lines, ropes or rods with thickened ends, for example stop parts or molded-on elements, can only be poorly guided through the through opening. For this reason, two-part or multi-part designs can be used. In the case of two-part or multi-part wall penetrations, the sealing between the parts can be a challenge, but so can the dimensional and shape accuracy of the assembled parts. The latter can be particularly problematic if the assembled parts are only held together by wedging in the opening in the wall. A connection by gluing can help here, but requires an additional work step and, if necessary, drying time. In addition, glued parts are very difficult to separate again, should this become necessary for maintenance purposes or when replacing the parts.

In der US 5 545 854 A ist eine mehrteilige Kabeldurchführung offenbart, bei der jedes von zwei flexiblen Dichtungsteilen jeweils zwischen zwei Hartkomponenten aufgenommen wird. Die so aus jeweils drei zusammengefügten Teilen entstehenden Hälften der Kabeldurchführung werden dann beiderseits einer Leitung positioniert, so dass diese von der Kabeldurchführung aufgenommen werden kann, und mittels Rastverbindungen zusammengefügt. Dabei wird die Leitung von den flexiblen Dichtungsteilen dichtend eingeklemmt, die sich axial über die gesamte Länge der Kabeldurchführung erstrecken.In the U.S. 5,545,854 A discloses a multi-part cable bushing in which each of two flexible sealing parts is received between two hard components. The halves of the cable bushing thus created from three parts joined together are then positioned on both sides of a line so that it can be received by the cable bushing, and joined together by means of snap-in connections. The line is clamped in a sealing manner by the flexible sealing parts, which extend axially over the entire length of the cable bushing.

Die US 9 944 239 B1 zeigt eine vierteilige Dichtungsanordnung, bei der in jeder von zwei Hälften einer Hartkomponente jeweils eine von zwei Hälften einer Dichtungskomponente aufgenommen wird. Beim Zusammenbau der Hälften wird die Leitung von den flexiblen Dichtungsteilen dichtend eingeklemmt, die sich axial über die gesamte Länge der Kabeldurchführung erstrecken.the US 9 944 239 B1 shows a four-part sealing arrangement in which one of two halves of a sealing component is received in each of two halves of a hard component. When assembling the halves, the cable is clamped in a sealing manner by the flexible sealing parts, which extend axially over the entire length of the cable bushing.

Die US 2014/054064 A1 zeigt eine Kabeldurchführung mit einer über einem Kabel zusammenklappbaren Hartkomponente, über welcher eine zusammenklappbare, glockenartige äußere Dichtungskomponente anbringbar ist, die zugleich die einzige Dichtungskomponente der Kabeldurchführung darstellt.the US 2014/054064 A1 shows a cable bushing with a hard component that can be folded over a cable, over which a collapsible, bell-like outer sealing component can be attached, which at the same time represents the only sealing component of the cable bushing.

Durch eine ein- oder mehrteilige Wanddurchführung aus elastischen Materialien geführte Leitungen oder Seile können nicht unmittelbar vor und/oder nach der Wanddurchführung in einem engen Radius verlegt werden, weil sonst u.a. die Geometrie der Wanddurchführung und damit der dichtende Anschluss an die Wand beeinträchtigt werden. Wenn eine Leitung oder ein Seil in Längsrichtung beweglich in einer solchen Wanddurchführung geführt ist führt eine Verlegung in einem engen Radius oder eine nicht der Seilachse folgende Zugbelastung dazu, dass die Kraft zum Bewegen der Leitung oder des Seils stark schwankt.Lines or ropes routed through a one-piece or multi-part wall duct made of elastic materials cannot be laid in a narrow radius immediately before and / or after the wall duct, because otherwise the geometry of the wall duct and thus the sealing connection to the wall would be impaired. If a line or a rope is movably guided in the longitudinal direction in such a wall duct Laying in a narrow radius or a tensile load that does not follow the rope axis means that the force to move the cable or the rope fluctuates greatly.

Zusammenfassung der ErfindungSummary of the invention

Es ist daher wünschenswert, eine Wanddurchführung zu erhalten, welche Nachteile der bekannten Wanddurchführungen verringert oder vermeidet, und eine verbesserte Handhabung bietet.It is therefore desirable to obtain a wall bushing which reduces or avoids the disadvantages of the known wall bushings and offers improved handling.

Zur Lösung dieser Aufgabe schlägt die Erfindung eine Wanddurchführung mit einer mehrteiligen, vorzugsweise zweiteiligen Hartkomponente und einem Dichtungsteil vor, bei der jedes Teil der Hartkomponente in einer aus einer parallel zu der Wand liegenden Ebene herausweisenden Richtung eine durchgehende Aussparung aufweist. Die Aussparungen können senkrecht zu der parallel zur Wand liegenden Ebene verlaufen, aber auch in beliebigen Winkeln. Im zusammengesetzten Zustand bilden die Aussparungen der Teile der Hartkomponente eine Durchführungsöffnung. Ausführungen mit mehreren Aussparungen, die im zusammengesetzten Zustand mehrere entsprechende Durchführungen bilden, sind ebenfalls möglich.To solve this problem, the invention proposes a wall duct with a multi-part, preferably two-part hard component and a sealing part, in which each part of the hard component has a continuous recess in a direction pointing out of a plane parallel to the wall. The recesses can run perpendicular to the plane lying parallel to the wall, but also at any angles. In the assembled state, the recesses in the parts of the hard component form a feed-through opening. Designs with several recesses, which form several corresponding passages when assembled, are also possible.

Jedes Teil der Hartkomponente weist zumindest an der Aussparung eine erste Aufnahme für eine Weichkomponente auf. Die in der ersten Aufnahme aufgenommenen Weichkomponenten liegen im montierten Zustand der Teile der Hartkomponente dichtend aneinander und umschließen die Durchführungsöffnung radial. Alternativ kann eine die Durchführungsöffnung ringförmig umschließende, elastische Weichkomponente in den ersten Aufnahmen der Teile der Hartkomponenten aufgenommen sein, bspw. ein elastischer Dichtring, der ein durch die Durchführungsöffnung hindurchgeführtes Kabel, Seil oder Gestänge umschließt. Die Abmessungen von Weichkomponente und Aussparung bzw. Durchführungsöffnung einerseits und Seil, Kabel oder Gestänge andererseits sind derart aufeinander abgestimmt, dass die Durchführungsöffnung im Montageendzustand dicht abgeschlossen ist.Each part of the hard component has a first receptacle for a soft component at least at the recess. The one in the first In the assembled state of the parts of the hard component, the soft components that have been received lie against one another in a sealing manner and radially enclose the feed-through opening. Alternatively, an elastic soft component that surrounds the feed-through opening in a ring shape can be accommodated in the first receptacles of the parts of the hard components, for example an elastic sealing ring that surrounds a cable, rope or rods passed through the feed-through opening. The dimensions of the soft component and recess or feed-through opening on the one hand and the rope, cable or linkage on the other hand are matched to one another in such a way that the feed-through opening is tightly sealed in the final assembly state.

Die Weichkomponenten können in die ersten Aufnahmen eingelegt oder an die ersten Aufnahmen angespritzt sein. Die erste Aufnahme kann dabei so gestaltet sein, dass die Weichkomponente formschlüssig mit der Hartkomponente verbunden ist. Je nach Ausführung kann eine zusätzliche stoffschlüssige Verbindung zwischen Hart- und Weichkomponente vorgesehen sein, bspw. durch Verkleben oder lokales Aufschmelzen im Kontaktbereich von Weichkomponente und erster Aufnahme.The soft components can be inserted into the first receptacles or molded onto the first receptacles. The first receptacle can be designed in such a way that the soft component is positively connected to the hard component. Depending on the design, an additional material connection between the hard and soft components can be provided, for example by gluing or local melting in the contact area of the soft component and the first receptacle.

Jedes Teil der Hartkomponente weist außerdem eine oder mehrere Rastvorrichtungen auf, welche nach dem Einbringen der Wanddurchführung in ein Durchgangsloch der Wand mit der Wand verrasten. Dabei kann es sich um die Wand eines elektrischen Gerätes oder einer elektrischen Anlage usw. oder aber auch um eine Trennwand eines Kraftfahrzeugs handeln. Die konkrete Ausgestaltung der Wand, insbesondere die Beschaffenheit der Wand oder die hierfür verwendeten Materialien, ist für die Ausführbarkeit der Erfindung unerheblich. Die Rastvorrichtungen können Rast- oder Schnapphaken umfassen, welche die Wanddurchführung ohne Werkzeug durch Einrasten am Umfang oder Rand des Durchgangslochs in der Wand fixieren.Each part of the hard component also has one or more latching devices which, after the wall lead-through has been introduced into a through hole in the wall, latch with the wall. This can be the wall of an electrical device or an electrical system, etc., or it can also be a partition wall of a motor vehicle. The specific design of the wall, in particular the nature of the wall or the materials used for this, is irrelevant for the feasibility of the invention. The latching devices can comprise latching or snap hooks which fix the wall leadthrough without tools by latching on the circumference or edge of the through hole in the wall.

Jedes Teil der Hartkomponente weist zudem an einer Außenseite mindestens eine zweite Aufnahme für das Dichtungsteil auf. Die zweiten Aufnahmen sind im eingebauten Zustand von der Wand beabstandet, d.h., sie liegen nicht unmittelbar an der Wand an. Das Dichtungsteil weist einen Dichtbereich auf, welcher die zusammengefügten und mit der Wand verrasteten Teile der Hartkomponente zumindest zwischen den zweiten Aufnahmen und zu der Wand abdichtet. Dabei kann das Dichtungsteil auf die Hartkomponente eine elastische Kraft in einer im Wesentlichen senkrecht zu der Wand wirkenden Richtung ausüben, welche die durch das Durchgangsloch geführten Rastvorrichtungen an der Wand halten. Das Dichtungsteil kann einteilig ausgeführt sein und die miteinander verbundenen Teile der Hartkomponente radial umschließen.Each part of the hard component also has at least one second receptacle for the sealing part on an outside. The second recordings are spaced from the wall in the installed state, that is, they do not lie directly on the wall. The sealing part has a Sealing area which seals the parts of the hard component that are joined together and latched to the wall at least between the second receptacles and to the wall. In this case, the sealing part can exert an elastic force on the hard component in a direction acting essentially perpendicularly to the wall, which force holds the latching devices guided through the through hole on the wall. The sealing part can be made in one piece and radially enclose the parts of the hard component that are connected to one another.

Bei einer oder mehreren Ausführungen der Wanddurchführung weisen die Teile der Hartkomponente an oder auf einer Fläche, die im montierten Zustand zumindest bereichsweise an einer entsprechenden Fläche eines benachbarten Teils der Hartkomponente anliegt, Dichtmittel auf. Diese Dichtmittel können Teil der Weichkomponente sein, oder zumindest dichtend an dieser anliegen. Dichtend bedeutet im Kontext dieser Beschreibung, dass Fluide an der Ausbreitung durch oder über die dichtenden Elemente hinaus ge- oder zumindest behindert werden. Die Dichtmittel erstrecken sich, an die Weichkomponente der Aussparung dichtend anschließend, in radialer Richtung von der innen liegenden Durchgangsöffnung aus unterbrechungsfrei bis zu einer äußeren Oberfläche der Hartkomponente. Die Dichtmittel bilden eine Sperre für Fluide, die zwischen die aneinander anliegenden Flächen der Teile der Hartkomponente gelangen. Bei eng aneinander liegenden Flächen könnte sonst ein Fluidtransport durch die Wanddurchführung aufgrund des Kapillareffekts erfolgen. Als Fluid kommt beispielsweise Wasser in Frage, insbesondere Regen- und/oder Spritzwasser.In one or more designs of the wall duct, the parts of the hard component have sealing means on or on a surface which, in the assembled state, bears at least regionally on a corresponding surface of an adjacent part of the hard component. These sealants can be part of the soft component or at least bear against it in a sealing manner. In the context of this description, sealing means that fluids are prevented or at least hindered from spreading through or beyond the sealing elements. The sealing means extend, sealingly adjoining the soft component of the recess, in the radial direction from the internal through opening without interruption to an outer surface of the hard component. The sealing means form a barrier for fluids that get between the abutting surfaces of the parts of the hard component. In the case of surfaces lying close to one another, fluid could otherwise be transported through the wall duct due to the capillary effect. For example, water can be used as the fluid, in particular rainwater and / or splash water.

Bei einer oder mehreren Ausführungen der Wanddurchführung weist die Durchführungsöffnung im Bereich der Weichkomponenten einen kleineren Durchmesser auf als im Bereich der Hartkomponenten. Dabei kann die Verringerung des Durchmessers durch die Weichkomponente hervorgerufen sein. Alternativ oder zusätzlich dazu können die Aussparungen in den Teilen der Hartkomponente selbst einen geänderten Querschnitt aufweisen. Die Weichkomponente kann im Bereich der Aussparung bzw. der späteren Durchführungsöffnung unter mechanischer Spannung an einem durch die Durchführungsöffnung hindurchgeführten Seil, Kabel, Gestänge oder dergleichen dichtend anliegen. Um eine bessere Beweglichkeit des durch die Durchführungsöffnung geführten Bauteils zu ermöglichen können an dieser Stelle ein oder mehrere Lamellen oder Rippen vorgesehen sein, welche an dem Bauteil anliegen. Diese Rippen oder Lamellen können sich in Richtung einer Bewegung des Bauteils verformen und trotzdem daran anliegen, so dass die Dichtigkeit der Durchführung auch bei einer Verschiebung des durch die Wanddurchführung geführten Bauteils gewährleistet ist.In one or more designs of the wall duct, the duct opening has a smaller diameter in the area of the soft components than in the area of the hard components. The reduction in diameter can be caused by the soft component. As an alternative or in addition to this, the recesses in the parts of the hard component themselves can have a different cross section. The soft component can in the area of the recess or the later lead-through opening under mechanical tension on one through the Lead-through opening of the rope, cable, rods or the like are in sealing contact. In order to enable better mobility of the component guided through the lead-through opening, one or more lamellae or ribs can be provided at this point, which rest against the component. These ribs or lamellas can deform in the direction of a movement of the component and still bear against them, so that the seal of the bushing is guaranteed even if the component guided through the wall bushing is displaced.

Bei einer oder mehreren Ausführungen der Wanddurchführung weisen die Teile der Hartkomponente eines oder mehrere Verbindungselemente auf, mittels derer die Teile der Hartkomponente verbindbar sind. Die Verbindung kann dabei lösbar oder unlösbar sein. Die Verbindungselemente können beispielsweise Rastnasen umfassen, welche in entsprechende Ösen oder Hinterschnitte des jeweils anderen Teils der Hartkomponente eingreifen. Denkbar sind auch Spreizelemente, welche in entsprechende Löcher oder Bohrungen des jeweils anderen Teils der Hartkomponente eingreifen, dort aufspreizen und ein Lösen der Teile voneinander verhindern. Anstelle der Spreizelemente können auch in enger Passung in entsprechende Löcher oder Bohrungen des jeweils anderen Teils der Hartkomponente eingreifende zylindrische Stifte vorgesehen sein. In diesem Fall verhindert die Reibung zwischen Stift und Bohrung ein Lösen der Teile, was zusätzlich durch das Dichtungsteil und/oder die Durchführungsöffnung in der Wand be- oder verhindert werden kann. Zusätzlich können die Teile verklebt oder verschweißt werden.In one or more designs of the wall duct, the parts of the hard component have one or more connecting elements by means of which the parts of the hard component can be connected. The connection can be detachable or non-detachable. The connecting elements can, for example, comprise latching lugs which engage in corresponding eyelets or undercuts of the respective other part of the hard component. Spreading elements are also conceivable which engage in corresponding holes or bores in the respective other part of the hard component, spread open there and prevent the parts from becoming detached from one another. Instead of the expansion elements, cylindrical pins engaging closely in corresponding holes or bores in the respective other part of the hard component can also be provided. In this case, the friction between the pin and the bore prevents the parts from loosening, which can additionally be impeded or prevented by the sealing part and / or the feed-through opening in the wall. In addition, the parts can be glued or welded.

Bei einer oder mehreren Ausführungen der Wanddurchführung umschließt das Dichtungsteil die Teile der Hartkomponente zumindest zwischen den zweiten Aufnahmen und der Wand ringförmig. Das Dichtungsteil kann dazu radial elastisch ausgeführt sein, so dass es mit einer inneren Ringseite unter mechanischer Spannung an einer Außenseite der Hartkomponente anliegt.In one or more designs of the wall duct, the sealing part surrounds the parts of the hard component in an annular manner, at least between the second receptacles and the wall. For this purpose, the sealing part can be designed to be radially elastic, so that its inner ring side rests against an outer side of the hard component under mechanical tension.

Bei einer oder mehreren Ausführungen der Wanddurchführung ist das Dichtungsteil in einer Richtung, welche aus einer zu der Wand parallelen Ebene herausweist, elastisch oder plastisch verformbar, so dass es im eingebauten Zustand der Wanddurchführung zwischen den zweiten Aufnahmen und der Wand komprimiert oder so verformt wird, dass das Dichtungsteil umlaufend dichtend an der Wand anliegt. Im Falle eines mehr oder weniger ringförmigen Dichtungsteils heißt das, dass das Dichtungsteil in axialer Richtung elastisch oder plastisch verformbar ist. Hierdurch können auch unterschiedliche Stärken der Wand ausgeglichen werden, d.h. dieselbe Wanddurchführung kann bei unterschiedlichen Wandstärken verwendet werden. Außerdem werden Unregelmäßigkeiten zwischen der Wand und der Wanddurchführung gegeneinander ausgeglichen.In one or more designs of the wall duct, the sealing part is elastically or plastically deformable in a direction which points out of a plane parallel to the wall, so that it is built-in State of the wall lead-through between the second receptacles and the wall is compressed or deformed so that the sealing part rests against the wall in a circumferentially sealing manner. In the case of a more or less ring-shaped sealing part, this means that the sealing part is elastically or plastically deformable in the axial direction. In this way, different wall thicknesses can also be compensated for, ie the same wall duct can be used with different wall thicknesses. In addition, irregularities between the wall and the wall duct are compensated for against each other.

Bei einer oder mehreren Ausführungen der Wanddurchführung ist das Dichtungsteil mit den zweiten Aufnahmen stoff- und/oder formschlüssig verbindbar, so dass die Hartkomponenten und das Dichtungsteil zueinander fixierbar sind. Eine formschlüssige Verbindung kann bspw. mittels einer innenliegenden Ringnut in dem Dichtungsteil bewirkt werden, in welche die Aufnahmen eingreifen. Anstelle der Ringnut kann das Dichtungsteil auch entsprechende, mit den Aufnahmen korrespondierende, nach innen vorspringende Bereiche oder Aussparungen aufweisen.In one or more designs of the wall duct, the sealing part can be connected to the second receptacles in a material and / or form-fitting manner, so that the hard components and the sealing part can be fixed to one another. A positive connection can be brought about, for example, by means of an internal annular groove in the sealing part, into which the receptacles engage. Instead of the annular groove, the sealing part can also have corresponding inwardly projecting regions or recesses that correspond to the receptacles.

Bei einer oder mehreren Ausführungen der Wanddurchführung weist das Dichtungsteil auf einer an der Wand anliegenden Seite eine radial umlaufende, in Richtung Wand vorspringende elastische Dichtlippe auf, welche nach der Verrastung der Wanddurchführung in der Durchgangsöffnung der Wand unter mechanischer Spannung steht und umlaufend dichtend an der Wand anliegt.In one or more designs of the wall duct, the sealing part has a radially circumferential, elastic sealing lip protruding towards the wall on a side lying against the wall, which is under mechanical tension after the wall duct has been locked in the through opening of the wall and seals the wall all the way round is present.

Bei einer oder mehreren Ausführungen der Wanddurchführung umschließt das Dichtungsteil die zusammengesetzte Hartkomponente glockenförmig. Dabei bleibt die Durchgangsöffnung in axialer Richtung beidseitig offen. Der untere Teil des glockenförmigen Dichtungsteils kann dabei so gestaltet sein, dass die untere Öffnung der unter mechanischer Spannung an der Wand umlaufend dichtend anliegt. Das glockenförmige Dichtungsteil kann dazu mit den zweiten Aufnahmen so verbunden sein, dass eine axiale Verschiebung von Dichtungsteil und Hartkomponente nicht möglich ist. Je nach Elastizität des Dichtungsteils kann die obere Öffnung an dem Seil, Kabel oder Gestänge elastisch anliegen und so eine weitere Dichtung bilden.In one or more designs of the wall duct, the sealing part encloses the assembled hard component in a bell-shaped manner. The through opening remains open on both sides in the axial direction. The lower part of the bell-shaped sealing part can be designed in such a way that the lower opening rests against the wall in a sealing manner under mechanical tension. For this purpose, the bell-shaped sealing part can be connected to the second receptacles in such a way that axial displacement of the sealing part and the hard component is not possible. Depending on Elasticity of the sealing part, the upper opening can rest elastically on the rope, cable or linkage and thus form a further seal.

Bei einer oder mehreren Ausführungen weist das Dichtungsteil eine Form auf, die der Oberfläche eines Rotationskörpers ähnelt. Beispiele hierfür sind die äußere Oberfläche eines Kegelstumpfs, die Oberfläche eines Abschnitts eines Rotationsellipsoids zwischen zwei Breitengraden, eines Abschnitts eines Rotationsparaboloids oder eines Rotationshyperboloids.In one or more embodiments, the sealing member has a shape that resembles the surface of a body of revolution. Examples of this are the outer surface of a truncated cone, the surface of a section of an ellipsoid of revolution between two degrees of latitude, a section of a paraboloid of revolution or a hyperboloid of revolution.

Bei einer oder mehreren Ausführungen der Wanddurchführung sind die Teile der Hartkomponente Gleichteile. In einem Fall müssen die Gleichteile gegeneinander um 180 Grad gedreht werden, um miteinander verbunden werden zu können. In einem anderen Fall sind die Gleichteile Segmente, die ohne Drehung miteinander verbunden werden können.In the case of one or more designs of the wall duct, the parts of the hard component are identical parts. In one case, the identical parts have to be rotated 180 degrees in relation to one another in order to be able to be connected to one another. In another case, the identical parts are segments that can be connected to one another without rotating.

Die Weichkomponente, die Dichtmittel und/oder das Dichtungsteil bestehen vorzugsweise aus flexibel verformbaren Materialien bestehen, z.B. Silikon, Gummi, Polymere, Kautschuk, und dergleichen. Die Materialien von Weichkomponente, Dichtmittel, Dichtungsteil und/oder Hartkomponente können je nach Anforderung elektrisch nichtleitend sein oder, falls eine Abschirmung gegenüber elektromagnetischer Strahlung erforderlich ist oder die Erzeugung elektrischer Ladung durch Reibung vermieden werden soll, aus elektrisch leitfähigem Material. Hierzu können Kunststoffen elektrisch leitende Partikel in geeigneter Konzentration beigemischt sein.The soft component, the sealing means and / or the sealing part are preferably made of flexibly deformable materials, e.g. silicone, rubber, polymers, rubber, and the like. The materials of the soft component, sealant, sealing part and / or hard component can, depending on the requirements, be electrically non-conductive or, if shielding against electromagnetic radiation is required or the generation of electrical charge by friction is to be avoided, made of electrically conductive material. For this purpose, plastics can be mixed with electrically conductive particles in a suitable concentration.

Kurze Beschreibung der ZeichnungBrief description of the drawing

Nachfolgend wird die Erfindung anhand einer Ausführungsform unter Bezugnahme auf die begleitenden Figuren exemplarisch näher erläutert. Alle Figuren sind rein schematisch und nicht maßstäblich. Es zeigen:

Fig. 1
eine schematische Darstellung von Komponenten einer exemplarischen erfindungsgemäßen Wanddurchführung mit zweiteiliger Hartkomponente,
Fig. 2
zwei Ansichten der zusammengefügten Komponenten der Wanddurchführung aus Figur 1 aus im Wesentlichen entgegengesetzten Richtungen,
Fig. 3
eine Detailansicht eines Teils der Hartkomponente aus Figur 1 mit Weichkomponente,
Fig. 4
eine Schnittansicht der im Durchgangsloch einer Wand montierten Wanddurchführung aus Figur 1,
Fig. 5
eine Schnittansicht einer im Durchgangsloch einer Wand montierten Variante der erfindungsgemäßen Wanddurchführung,
Fig. 6
eine erste Ansicht einer Anwendung der erfindungsgemäßen Wanddurchführung in einem Elektrofahrzeug,
Fig. 7
eine zweite Ansicht einer Anwendung der erfindungsgemäßen Wanddurchführung in einem Elektrofahrzeug, und
Fig. 8
eine exemplarische Darstellung der Verfahrensschritte zur Montage einer erfindungsgemäßen Wanddurchführung.
In the following, the invention is explained in more detail by way of example on the basis of an embodiment with reference to the accompanying figures. All figures are purely schematic and not to scale. Show it:
Fig. 1
a schematic representation of components of an exemplary wall duct according to the invention with a two-part hard component,
Fig. 2
two views of the assembled components of the wall duct Figure 1 from essentially opposite directions,
Fig. 3
a detailed view of part of the hard component Figure 1 with soft component,
Fig. 4
a sectional view of the wall bushing mounted in the through hole of a wall Figure 1 ,
Fig. 5
a sectional view of a variant of the wall duct according to the invention mounted in the through hole of a wall,
Fig. 6
a first view of an application of the wall bushing according to the invention in an electric vehicle,
Fig. 7
a second view of an application of the wall bushing according to the invention in an electric vehicle, and
Fig. 8
an exemplary representation of the method steps for assembling a wall bushing according to the invention.

Gleiche oder ähnliche Elemente sind in den Figuren mit gleichen oder ähnlichen Bezugszeichen versehen.The same or similar elements are provided with the same or similar reference symbols in the figures.

AusführungsbeispieleEmbodiments

Figur 1 zeigt eine schematische Darstellung von Komponenten einer exemplarischen erfindungsgemäßen Wanddurchführung 100 mit zweiteiliger Hartkomponente 102 und einem Dichtungsteil 104. Die beiden Teile 102-1 und 102-2 der Hartkomponente 102 sind bei diesem Ausführungsbeispiel Gleichteile, d.h. es sind zwei identische Teile, welche gegeneinander gedreht zu der Hartkomponente 102 zusammengefügt werden können. Jedes Teil der Hartkomponente 102 weist Verbindungselemente 124 auf, bei der in der Figur exemplarisch gezeigten Ausführung sind die Verbindungselemente 124 Rasthaken, die in entsprechende Aussparungen bzw. Öffnungen eingreifen und dort einrasten. In dem Bereich, in dem die beiden Teile der Hartkomponente 102 aneinander anliegen ist bei jedem der Teile 102-1 und 102-2 eine Aussparung 108 vorgesehen, welche sich über die gesamte Länge der Hartkomponente erstreckt. Wenn beide Teile 102-1 und 102-2 zu der Hartkomponente zusammengefügt sind bilden die Aussparungen 108 eine Durchführungsöffnung, durch die ein Kabel, Seil oder Gestänge hindurchführbar ist. Quer zu der Aussparung 108 ist jeweils eine Weichkomponente 114 angeordnet, welche sich fast über die gesamte Breite der Teile der Hartkomponente erstreckt. Dabei folgt die Weichkomponente 114 der Kontur der Aussparung 108, so dass im zusammengefügten Zustand der Hartkomponente 102 eine Dichtung in der Durchführungsöffnung und zugleich eine Dichtung zwischen den beiden Teilen 102-1 und 102-2 der Hartkomponente 102 bereitgestellt ist. Die Weichkomponente 114 kann dabei in einer in der Figur nicht erkennbaren ersten Aufnahme angeordnet sein, bspw. einer Rille oder Nut. Eine zweite Aufnahme 120 ist an jedem Teil 102-1 und 102-2 der Hartkomponente 102 vorgesehen. In der Figur ist die zweite Aufnahme 120 ein radial umlaufender Ring, der in eine entsprechende Nut des Dichtungsteils 104 eingreift und die Hartkomponente 102 mit dem Dichtungsteil 104 formschlüssig verbindet. Das Dichtungsteil weist an einer Seite einen Dichtbereich 122 auf, welcher im montierten Zustand der Wanddurchführung 100 an der in der Figur nicht dargestellten Wand dichtend anliegt. Die Teile 102-1 und 102-2 der Hartkomponente 102 weisen außerdem jeweils eine Rastvorrichtung 116 auf, mittels welcher die Wanddurchführung 100 in einem Durchgangsloch der Wand verrastet wird. Figure 1 shows a schematic representation of components of an exemplary wall duct 100 according to the invention with a two-part hard component 102 and a sealing part 104. The two parts 102-1 and 102-2 of the hard component 102 are identical parts in this embodiment, ie there are two identical parts that are rotated against each other the hard component 102 can be assembled. Each part of the hard component 102 has connecting elements 124; in the embodiment shown by way of example in the figure, the connecting elements 124 are latching hooks which engage in corresponding recesses or openings and latch there. In the area where the two parts of the hard component 102 abut one another, a recess 108 is provided in each of the parts 102-1 and 102-2 which extends over the entire length of the hard component. When the two parts 102-1 and 102-2 are joined together to form the hard component, the recesses 108 form a feed-through opening through which a cable, rope or linkage can be passed. A soft component 114 is arranged transversely to the recess 108 and extends over almost the entire width of the parts of the hard component. The soft component 114 follows the contour of the recess 108, so that in the assembled state of the hard component 102 a seal is provided in the feed-through opening and at the same time a seal is provided between the two parts 102-1 and 102-2 of the hard component 102. The soft component 114 can be arranged in a first receptacle, which cannot be seen in the figure, for example a groove or groove. A second receptacle 120 is provided on each part 102-1 and 102-2 of the hard component 102. In the figure, the second receptacle 120 is a radially encircling ring which engages in a corresponding groove in the sealing part 104 and connects the hard component 102 to the sealing part 104 in a form-fitting manner. On one side, the sealing part has a sealing area 122 which, in the assembled state of the wall duct 100, rests in a sealing manner on the wall (not shown in the figure). The parts 102-1 and 102-2 of the hard component 102 also each have a latching device 116 by means of which the wall duct 100 is latched in a through hole in the wall.

Figur 2 zeigt zwei Ansichten der zusammengefügten Komponenten der Wanddurchführung 100 aus Figur 1 aus im Wesentlichen entgegengesetzten Richtungen. Auf der linken Seite der Figur ist eine perspektivische Ansicht des Dichtungsteils 104 von einer Außenseite gesehen gezeigt, in dem die Hartkomponente 102 aufgenommen ist. Außenseite bezeichnet hierbei die Seite, auf der unerwünschte oder undefinierte Umweltzustände herrschen können, die von einer Innenseite ferngehalten sollen. In diesem Teil der Figur ist von der Hartkomponente 102 nur ein kleiner Teil erkennbar. Außerdem ist die Öffnung des Durchführungsöffnung 110 erkennbar. Figure 2 FIG. 11 shows two views of the assembled components of the wall bushing 100 from FIG Figure 1 from substantially opposite directions. On the left-hand side of the figure, a perspective view of the sealing part 104, seen from an outside, is shown, in which the hard component 102 is received. The outside refers to the side on which undesirable or undefined environmental conditions can prevail, which should be kept away from the inside. In this part of the figure, only a small part of the hard component 102 can be seen. In addition, the opening of the feed-through opening 110 can be seen.

Auf der rechten Seite der Figur ist eine perspektivische Ansicht des Dichtungsteils 104 von der Innenseite gesehen gezeigt, in welchem die Hartkomponente 102 aufgenommen ist. Die Rastvorrichtung 116 der Hartkomponente 102 ist deutlich erkennbar, mittels derer die Wanddurchführung 100 in dem in der Figur nicht dargestellten Durchgangsloch der Wand befestigbar ist. Ebenfalls deutlich sind die beiden Teile der Hartkomponente 102 erkennbar, bzw. die Trennlinie, an der die beiden Teile aneinander anliegen, sowie die Durchführungsöffnung 110.On the right-hand side of the figure, a perspective view of the sealing part 104, seen from the inside, is shown, in which the hard component 102 is received. The latching device 116 of the hard component 102 can be clearly seen, by means of which the wall duct 100 can be fastened in the through hole in the wall, which is not shown in the figure. The two parts of the hard component 102, or the dividing line at which the two parts bear against one another, and the lead-through opening 110 can also be clearly seen.

Figur 3 zeigt eine perspektivische Detailansicht eines Teils der Hartkomponente 102 der Wanddurchführung 100 aus Figur 1 mit aufgenommener Weichkomponente 114. Die Ansicht zeigt die Fläche, die im zusammengefügten Zustand der Wanddurchführung 100 an dem anderen Teil der Hartkomponente 102 anliegt. An der linken Seite des Teils der Hartkomponente 102 sind die Rasthaken der Verbindungselemente 124 erkennbar. An der rechten Seite die entsprechenden Stellen, an denen die Rasthaken des anderen Teils der Hartkomponente 102 im zusammengefügten Zustand einrasten. Die Aussparung 108 verläuft zentral durch die Hartkomponente 102 und bildet eine Hälfte der späteren Durchführungsöffnung. Die Weichkomponente 114 erstreckt sich in Höhe der zweiten Aufnahme 120 quer zur Aussparung 108 und bildet eine Dichtungsebene quer durch die Wanddurchführung. Die Weichkomponente 114 verengt im Bereich der Aussparung 108 die Durchführungsöffnung, so dass ein in den zusammengefügten Teilen der Wanddurchführung aufgenommenes Seil, Kabel oder Gestänge frei beweglich in der Durchführungsöffnung führbar ist, aber die gewünschte Dichtwirkung trotzdem erzielt wird (nicht in der Figur dargestellt). Die Weichkomponente 114 liegt dazu im Bereich der Durchführungsöffnung unter mechanischer Spannung elastisch an dem Seil, Kabel oder Gestänge an. Figure 3 FIG. 13 shows a perspective detailed view of part of the hard component 102 of the wall bushing 100 from FIG Figure 1 with the soft component 114 picked up. The view shows the surface which rests against the other part of the hard component 102 in the assembled state of the wall duct 100. The latching hooks of the connecting elements 124 can be seen on the left side of the part of the hard component 102. On the right-hand side, the corresponding points at which the latching hooks of the other part of the hard component 102 engage in the assembled state. The recess 108 runs centrally through the hard component 102 and forms one half of the later lead-through opening. The soft component 114 extends at the level of the second receptacle 120 transversely to the recess 108 and forms a sealing plane transversely through the wall duct. The soft component 114 narrows the feed-through opening in the area of the recess 108, so that a rope, cable or linkage accommodated in the assembled parts of the wall feed-through can be guided freely in the feed-through opening, but the desired sealing effect is still achieved (not shown in the figure). For this purpose, the soft component 114 rests elastically on the rope, cable or linkage in the area of the feed-through opening under mechanical tension.

Figur 4 zeigt eine Schnittansicht der im Durchgangsloch 118 einer Wand 106 montierten Wanddurchführung 100 aus Figur 1. Wand 106 kann bspw. eine Spritzwand oder ein Trennblech in einem Kraftfahrzeug sein, die einen Nassbereich NB von einem Trockenbereich TB trennt. Die Hartkomponente 102 ist mit den Rastvorrichtungen 116 in dem Durchgangsloch 118 der der Wand 106 verrastet. Das glockenförmige Dichtungsteil 104 übergreift die Hartkomponente 102 und ist in der zweiten Aufnahme 120 formschlüssig aufgenommen, so dass Dichtungsteil 104 und Hartkomponente 102 gegen eine Verschiebung in Richtung der Durchführungsöffnung 110 gesichert sind. Dichtungsteil 104 ist zwischen Wand 106 und zweiter Aufnahme 120 eingeklemmt. Dabei kann dieser Bereich des Dichtungsteils komprimiert und/oder verformt sein, so dass das Dichtungsteil 104 mit einem Dichtbereich 122 radial umlaufend an der Wand 106 anliegt. In der Figur ist dies dadurch dargestellt, dass der äußere Rand des Dichtungsteils scheinbar in die Wand eindringt; in der Realität würde der äußere Rand unter mechanischer Spannung an der Wand anliegen. Die Trennlinie zwischen den beiden Teilen der Hartkomponente verläuft senkrecht aus der Zeichnungsebene herausweisend, daher sind die Bereiche der Weichkomponente 114, die sich zu den Rändern der zweiten Aufnahme 120 erstrecken nicht dargestellt. Figure 4 FIG. 8 shows a sectional view of the wall bushing 100 mounted in the through hole 118 of a wall 106 Figure 1 . Wall 106 can be, for example, a bulkhead or a partition plate in a motor vehicle, which separates a wet area NB from a dry area TB. The hard component 102 is in the through hole with the latching devices 116 118 of the wall 106 latches. The bell-shaped sealing part 104 engages over the hard component 102 and is received in a form-fitting manner in the second receptacle 120, so that the sealing part 104 and hard component 102 are secured against displacement in the direction of the feed-through opening 110. Sealing part 104 is clamped between wall 106 and second receptacle 120. This area of the sealing part can be compressed and / or deformed so that the sealing part 104 rests radially circumferentially on the wall 106 with a sealing area 122. In the figure, this is shown in that the outer edge of the sealing part appears to penetrate into the wall; in reality, the outer edge would rest against the wall under mechanical tension. The dividing line between the two parts of the hard component runs perpendicularly pointing out of the plane of the drawing, so the areas of the soft component 114 that extend to the edges of the second receptacle 120 are not shown.

Figur 5 zeigt eine Schnittansicht einer im Durchgangsloch 118 einer Wand 106 montierten Variante der erfindungsgemäßen Wanddurchführung 100. Bei dieser Variante umschließt im Unterschied zu der in Figur 4 gezeigten Ausführung das Dichtungsteil 104 die Hartkomponente 102 nicht glockenförmig, sondern ist als Ring ausgeführt. Das ringförmige Dichtungsteil 104 ist genau wie in Figur 4 zwischen Wand 106 und zweiter Aufnahme 120 eingeklemmt, so dass es unter mechanischer Spannung steht. Die Dichtheit zwischen den beiden Teilen der Hartkomponente 102 und dem Dichtungsteil 104 wird durch eine entsprechende Gestaltung der Weichkomponente 114 erreicht, welche bis an das Dichtungsteil 104 herangeführt ist. In der Figur ist dies exemplarisch durch die Linie dargestellt, die sich von der Weichkomponente 114 aus seitlich in Richtung Dichtungsteil 104 erstreckt. Die übrigen Elemente entsprechen denen aus Figur 4 und sind mit denselben Bezugszeichen referenziert. Sie werden daher nicht erneut erläutert. Figure 5 shows a sectional view of a variant of the wall duct 100 according to the invention mounted in the through hole 118 of a wall 106. In this variant, in contrast to the one in FIG Figure 4 The embodiment shown, the sealing part 104, the hard component 102 is not bell-shaped, but is designed as a ring. The annular seal member 104 is exactly as in FIG Figure 4 clamped between wall 106 and second receptacle 120, so that it is under mechanical tension. The tightness between the two parts of the hard component 102 and the sealing part 104 is achieved by a corresponding design of the soft component 114, which is brought up to the sealing part 104. This is exemplified in the figure by the line which extends laterally from the soft component 114 in the direction of the sealing part 104. The other elements correspond to those from Figure 4 and are referenced with the same reference symbols. They are therefore not explained again.

Figur 6 zeigt eine erste Ansicht einer Anwendung der erfindungsgemäßen Wanddurchführung 100 in einem Elektrofahrzeug. Bei vielen Elektrofahrzeugen ist eine Ladedose 128 vorgesehen, mittels derer eine elektrische Verbindung zwischen einer Stromquelle und der Antriebsbatterie des Fahrzeugs hergestellt werden kann (nicht in der Figur gezeigt). Die Ladedose 128 ist üblicherweise von außen zugänglich am Fahrzeug angeordnet, befindet sich somit außerhalb eines von äußeren Umwelteinflüssen abgeschirmten Innenraums des Fahrzeugs. Ein mit der Ladedose 128 verbundener Stecker einer Stromquelle (nicht in der Figur gezeigt) muss auch vom Innenraum aus von der Ladedose 128 getrennt werden können. Dazu ist ein Seilzug 126 vorgesehen, der mit einer in der Figur nicht dargestellten Betätigungsvorrichtung im Innenraum des Fahrzeugs verbunden ist, und der mit einer mechanischen Trenneinrichtung an der Ladedose verbunden ist. Bei Betätigung des Seilzuges werden Stecker und Ladedose 128 voneinander getrennt. Der Seilzug 126 muss durch die Wand 106, die den Innenraum (Trockenbereich) vom Äußeren des Fahrzeugs (Nassbereich) trennt, hindurchgeführt werden. In der Figur befindet der Nassbereich auf der Seite der Wand 106, auf der sich die Ladedose 128 befindet. Dazu ist der Seilzug 126 durch eine erfindungsgemäße Wanddurchführung 100 geführt. Wie eingangs erwähnt ist es wünschenswert, Durchgangslöcher in Trennwänden mit möglichst kleinen Durchmessern auszuführen. Die erfindungsgemäße zweiteilige Wanddurchführung ermöglicht dies dadurch, dass die Durchführungsöffnung in der Wanddurchführung nur in etwa den Durchmesser des Seilzuges aufweisen muss, weil größere Anschlagteile des Seils nicht durch die Durchführungsöffnung hindurchgeführt werden müssen. Figure 6 shows a first view of an application of the wall bushing 100 according to the invention in an electric vehicle. In many electric vehicles, a charging socket 128 is provided, by means of which an electrical connection between a power source and the drive battery is established of the vehicle (not shown in the figure). The charging socket 128 is usually arranged on the vehicle, accessible from the outside, and is thus located outside an interior of the vehicle that is shielded from external environmental influences. A plug of a power source (not shown in the figure) connected to the charging socket 128 must also be able to be separated from the charging socket 128 from the interior. For this purpose, a cable pull 126 is provided which is connected to an actuating device (not shown in the figure) in the interior of the vehicle and which is connected to a mechanical separating device on the charging socket. When the cable is operated, the plug and charging socket 128 are separated from one another. The cable 126 must be passed through the wall 106, which separates the interior (dry area) from the exterior of the vehicle (wet area). In the figure, the wet area is on the side of the wall 106 on which the charging socket 128 is located. For this purpose, the cable 126 is passed through a wall duct 100 according to the invention. As mentioned at the beginning, it is desirable to make through holes in partition walls with the smallest possible diameters. The two-part wall bushing according to the invention makes this possible in that the bushing opening in the wall bushing only has to have approximately the diameter of the cable because larger stop parts of the cable do not have to be passed through the bushing opening.

Figur 7 zeigt eine zweite Ansicht einer Anwendung der erfindungsgemäßen Wanddurchführung 100 in einem Elektrofahrzeug. In der Figur ist eine Ansicht vom Innenraum des Fahrzeugs aus gezeigt. Seilzug 126 ist vom Innenraum (Trockenbereich) aus durch die in der Wand 106 montierte Wanddurchführung 100 geführt, und von dort mit der nicht in der Figur gezeigten Trenneinrichtung 130 der Ladedose 128 verbunden. Die Führung des Seilzugs 126 ist in den Figuren 6 und 7 rein exemplarisch und kann je nach Fahrzeug anders verlaufen. Figure 7 shows a second view of an application of the wall bushing 100 according to the invention in an electric vehicle. The figure shows a view from the interior of the vehicle. Cable pull 126 is guided from the interior (dry area) through the wall duct 100 mounted in the wall 106, and from there connected to the separating device 130 of the charging socket 128, not shown in the figure. The leadership of the cable 126 is in the Figures 6 and 7 purely exemplary and can vary depending on the vehicle.

Figur 8 zeigt eine exemplarische Darstellung der Verfahrensschritte zur Montage 200 einer erfindungsgemäßen Wanddurchführung 100. In einem ersten Schritt 202 wird das Kabel, Seil oder das Gestänge in den Aussparungen 108 der Teile der Hartkomponente 102 der Wanddurchführung 100 platziert. Im nächsten Schritt 204 werden die Teile der Hartkomponente 102 zusammengefügt und miteinander verbunden. Die Verbindung kann bspw. durch Verrasten der Verbindungselemente 124 erfolgen. Im nächsten Schritt 206 wird das Dichtungsteil mit der zweiten Aufnahme 120 verbunden bzw. an diese herangebracht. Die Wanddurchführung 100 wird nun in Schritt 208 in das Durchgangsloch 118 der Wand 106 eingeführt. Dies kann durch Verschieben der auf dem Kabel, Seil oder Gestänge 126 angeordneten Wanddurchführung 100 erfolgen, bspw. wenn das Kabel, Seil oder Gestänge 126 bereits durch das Durchgangsloch 118 der Wand 106 hindurchgeführt ist. Alternativ kann das Kabel, Seil oder Gestänge 126 vom Nassbereich aus durch das Durchgangsloch 118 in den Trockenbereich geführt werden, dabei wird auch die Wanddurchführung 100 in das Durchgangsloch 118 eingeführt. Schließlich wird die Wanddurchführung 100 im Durchgangsloch der Wand 106 verrastet, wobei das Dichtungsteil 104 zwischen der Hartkomponente 102 und der Wand 106 verformt wird und eine umlaufende Dichtung sichergestellt ist. Das Kabel, Seil oder Gestänge 126 kann nun noch in eine endgültige Position geschoben oder gezogen und dort angeschlagen oder befestigt werden. Figure 8 shows an exemplary representation of the method steps for assembly 200 of a wall bushing 100 according to the invention. In a first step 202, the cable, rope or linkage is in the cutouts 108 of the parts of the hard component 102 of the wall bushing 100 are placed. In the next step 204, the parts of the hard component 102 are assembled and connected to one another. The connection can be made, for example, by latching the connecting elements 124. In the next step 206, the sealing part is connected to the second receptacle 120 or brought to it. The wall bushing 100 is now introduced into the through hole 118 in the wall 106 in step 208. This can be done by moving the wall bushing 100 arranged on the cable, rope or rod 126, for example when the cable, cable or rod 126 is already passed through the through hole 118 of the wall 106. Alternatively, the cable, rope or rods 126 can be guided from the wet area through the through hole 118 into the dry area, while the wall bushing 100 is also inserted into the through hole 118. Finally, the wall duct 100 is latched in the through hole of the wall 106, the sealing part 104 being deformed between the hard component 102 and the wall 106 and a circumferential seal being ensured. The cable, rope or linkage 126 can now be pushed or pulled into a final position and attached or fastened there.

BezugszeichenlisteList of reference symbols

100100
WanddurchführungWall duct
102102
HartkomponenteHard component
104104
DichtungsteilSealing part
106106
Wand, TrennwandWall, partition
108108
AussparungRecess
110110
DurchführungsöffnungFeedthrough opening
112112
erste Aufnahmefirst shot
114114
WeichkomponenteSoft component
116116
RastvorrichtungLocking device
118118
DurchgangslochThrough hole
120120
zweite Aufnahmesecond shot
122122
DichtbereichSealing area
124124
VerbindungselementConnecting element
126126
Seilzug, Kabel, GestängeCable, cable, linkage
128128
LadedoseCharging socket
130130
TrenneinrichtungSeparator
132132
DichtlippeSealing lip
NBNB
NassbereichWet area
TBTB
TrockenbereichDry area

Claims (10)

  1. A wall feed-through (100), configured for the displaceable guidance of a line, a cable or a rod, having a multi-part hard component (102) and a one-part, radially circumferentially sealing sealing part (104), wherein each part of the hard component (102) has a continuous recess (108), which extends in the state built into a wall (106) in a direction pointing out from a plane lying parallel to the wall (106), wherein the recesses (108) of the parts of the hard component (102) in the assembled state form a feed-through opening (110), wherein each part of the hard component (102) has a first receptacle (112) in the recess (108), in which a soft component (114) separate from the sealing part (104) is arranged, wherein the respective soft components (114) abut against one another in a sealing manner in the mounted state of the parts of the hard component (102) and radially surround the feed-through opening (110), wherein the parts of the hard component (102) have one or a plurality of latching devices (116), which latch with the wall (106) after the introduction of the wall feed-through (100) into a through-hole (118) of the wall (106), wherein each part of the hard component (102) has at least a second receptacle (120) for the sealing part (104) on an outer side, and wherein the sealing part (104) has a sealing region (122), which seals the parts of the hard component (102), which are assembled and latched with the wall at least between the second receptacle (120) and the wall (106).
  2. The wall feed-through (100) according to claim 1, wherein the parts of the hard component (102) at or on a first surface, which in the mounted state at least in regions abuts against a corresponding second surface of an adjacent part of the hard component (102), have sealing means, wherein the sealing means, sealing adjacent to the soft components (114), extend in the radial direction from the inner feed-through opening without interruption to an outer surface of the hard component.
  3. The wall feed-through (100) according to claim 1 or 2, wherein the feed-through opening (110) has a smaller diameter in the region of the soft components (114) than in the region of the hard component (102).
  4. The wall feed-through (100) according to any one of claims 1 to 3, wherein the parts of the hard component (102) have one or a plurality of connecting elements (124), by means of which the parts of the hard component (102) can be connected.
  5. The wall feed-through (100) according to any one of claims 1 to 4, wherein the sealing part (104) annularly surrounds the parts of the hard component (102) at least between the second receptacle (120) and the wall (106).
  6. The wall feed-through (100) according to any one of claims 1 to 5, wherein the sealing part (104) is elastically deformable in the state built into a wall at least in a direction, which points out from the plane parallel to the wall (106).
  7. The wall feed-through (100) according to any one of claims 1 to 6, wherein the sealing part (104) can be connected to the second receptacle (120) in a material- and/or positive-locking manner, so that the hard component (102) and the sealing part (104) can be fixed to one another.
  8. The wall feed-through (100) according to any one of claims 1 to 7, wherein the sealing part (104) has a radially circumferential elastic sealing lip (132) projecting in the direction of wall (106) in the state build into a wall on a side abutting against the wall (106), which sealing lip is under mechanical tension after the latching of the wall feed-through (100) in the through-hole (118) of the wall (106) and abuts against the wall (106) in a circumferentially sealing manner.
  9. The wall feed-through (100) according to any one of claims 1 to 7, wherein the sealing part (104) surrounds the hard component (102) in a bell-shaped manner, wherein the feed-through opening (110) remains free.
  10. The wall feed-through (100) according to any one of the preceding claims, wherein the parts of the hard component (102) are identical parts.
EP18306157.1A 2018-09-03 2018-09-03 Wall feed-through for elongated components Active EP3617575B1 (en)

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EP18306157.1A EP3617575B1 (en) 2018-09-03 2018-09-03 Wall feed-through for elongated components

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Publication number Priority date Publication date Assignee Title
DE102020004281A1 (en) 2020-07-16 2022-01-20 Pöppelmann Holding GmbH & Co. KG grommet
GB2614049A (en) * 2021-12-16 2023-06-28 Dutypoint Ltd A connector

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Publication number Priority date Publication date Assignee Title
US5545854A (en) * 1993-12-29 1996-08-13 Yazaki Corporation Grommet for wire sealing
US9365170B2 (en) * 2012-08-23 2016-06-14 Yazaki North America, Inc. Grommet assembly
US9944239B1 (en) * 2017-05-19 2018-04-17 Newfrey Llc Fluid and dust resistant split grommet

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